class Creature:
    def hunting(self):
        print('Creature hunt')
        print(' 狩猎开始了 ')


class Animal(Creature):

    def call(cls):
        print(' 叫唤 ')

class Bird():
    def call(cls):
        print('咕~~咕~~咕...')
    def hunting(self):
        print('bird hunt')

class Bat(Bird,Animal):
    # def call(self):
    #     print('super audible ')
    pass

bat = Bat()
bat.call()
bat.hunting()
print(Bat.__mro__) # 找 继承顺序

# Creature
# Animal     Bird
#       Bat
# 深度
# 3.x 新式类   object 是 所有类的基类

# c4 算法







